Generate Data Matrix barcodes in bulk for PCB marking, pharmaceutical serialization, small-part identification, and industrial applications. Upload a CSV or Excel file and export 300 DPI PNG, scalable SVG, or print-ready PDF — no signup, no row limit, no watermark.
Generate Data Matrix Barcodes Free →Data Matrix encodes high-density data in the smallest physical space of any 2D barcode — ideal for components too small for QR codes.
Readable after laser etching, dot peening, or direct part marking on metal and plastic surfaces — common in aerospace and electronics manufacturing.
Generate GS1 DataMatrix codes for pharmaceutical packaging compliant with FDA DSCSA and EU FMD serialization requirements.
Paste part numbers, serial numbers, or any identifier one per line, or upload a CSV/Excel file.
Choose Data Matrix from the format picker. Set label size and output format.
Download your ZIP of PNG images or print-ready PDF at 300 DPI.
Laser-etch or label-print Data Matrix on circuit boards, chips, and electronic components for traceability.
GS1 DataMatrix on medication packaging encodes GTIN, lot, expiry, and serial number for regulatory compliance.
Aerospace and defense use Data Matrix for permanent marking on fasteners, tools, and structural components.
The US Postal Service uses Data Matrix (Intelligent Mail) for mail piece tracking and automated sorting.
Data Matrix is a two-dimensional matrix barcode symbology standardized under ISO/IEC 16022. It encodes data as a pattern of black and white square cells within a square or rectangular boundary. The finder pattern — an L-shaped solid border and a dashed alternating border — allows scanners to locate and orient the code regardless of rotation.
Data Matrix's key advantage is information density at small physical sizes. The ECC 200 error correction variant (the current standard) can recover data even when up to 30% of the barcode is damaged or obscured. This makes it the dominant choice for direct-part marking in manufacturing environments where barcodes must survive chemical, thermal, and mechanical stress.
| Property | Value |
|---|---|
| Symbology type | 2D matrix |
| Current standard | ECC 200 (supersedes the legacy ECC 000–140 series) |
| Square sizes | 10×10 up to 144×144 modules |
| Rectangular sizes | 8×18 up to 16×48 modules |
| Max numeric capacity | 3,116 digits |
| Max alphanumeric capacity | 2,335 characters |
| Error correction | Reed–Solomon, fixed at roughly 30 % recovery |
| Quiet zone | 1 module on all four sides |
| ISO standard | ISO/IEC 16022 |
| Licensing | Public domain — no patent, no royalty |
Unlike QR Code, Data Matrix does not offer selectable error-correction levels. ECC 200 fixes recovery at approximately 30 %, equivalent to QR's highest setting, and it is applied automatically at every symbol size. That removes a configuration decision but also means you cannot trade robustness for capacity — the format is opinionated in favour of reliability, which suits its industrial heritage.
Data Matrix is one of the few 2D formats with standardised rectangular variants. On a narrow strip — a cable label, a syringe barrel, the edge of a circuit board — a square symbol either does not fit or has to shrink below scannable module size. An 8×18 or 16×48 rectangular Data Matrix uses the available width instead of being constrained by the shorter dimension. QR Code has no equivalent in its base specification.
The two formats store comparable amounts of data, but their locating structures differ, and at small physical sizes that difference decides which one still scans.
A QR code spends three large corner squares plus timing and alignment patterns on orientation. On a version 1 QR symbol (21×21 modules), those finder patterns consume roughly a quarter of the total grid before any data is stored. Data Matrix uses a single solid L-shaped border along two edges, with an alternating dashed line on the other two. That costs a fraction of the area, so at the same physical footprint a Data Matrix symbol devotes more of itself to payload — or equivalently, encodes the same payload in a smaller square.
The quiet zone compounds the advantage. Data Matrix requires only 1 module of clear space on each side; QR requires 4. On a 12 mm label that difference alone is significant.
Because ECC 200 always applies about 30 % Reed–Solomon recovery, a Data Matrix symbol survives a scratched corner, a smeared edge, or a partially worn surface that would defeat a QR code set to level L or M. This is why aerospace and medical-device labelling standardised on Data Matrix rather than QR: parts get handled, cleaned with solvents, and heat-cycled for years, and the code has to remain readable throughout.
Data Matrix is the dominant format for direct part marking — laser etching, dot peening, or chemical etching a code straight onto metal or plastic rather than applying a label. Two standards drive this: MIL-STD-130, which governs Unique Identification marking on US Department of Defense items, and the pharmaceutical serialisation rules under the US Drug Supply Chain Security Act and the EU Falsified Medicines Directive, both of which specify Data Matrix for unit-level product identifiers. If you are labelling anything destined for defence or pharma supply chains, the format choice has already been made for you.
History: Data Matrix was developed in 1987 by International Data Matrix, Inc. and released into the public domain — it has never been patent-encumbered. That, plus its density advantage, is why it took hold in electronics and aerospace manufacturing years before QR Code reached consumer awareness.